package com.sky.mapper;

import com.sky.entity.User;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

import java.util.Map;

@Mapper
public interface UserMapper {
  /**
   * 根据openid来查询用户
   * @param openid
   * @return
   */
  @Select("select * from user where openid = #{openid}")
  User getUserByOpenid(String openid);

  void save(User user);

  /**
   * 根据动态条件统计用户数量
   * @param map
   * @return
   */
  Integer countByMap(Map map);
}
